21103121210322 has 16 divisors (see below), whose sum is σ = 43346951675712. Its totient is φ = 6844255527600.

The previous prime is 21103121210299. The next prime is 21103121210329. The reversal of 21103121210322 is 22301212130112.

It is not an unprimeable number, because it can be changed into a prime (21103121210329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47529552054 + ... + 47529552497.

It is an arithmetic number, because the mean of its divisors is an integer number (2709184479732).

Almost surely, 2^{21103121210322} is an apocalyptic number.

21103121210322 is an abundant number, since it is smaller than the sum of its proper divisors (22243830465390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21103121210322 is a wasteful number, since it uses less digits than its factorization.

21103121210322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95059104593.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21103121210322 its reverse (22301212130112), we get a palindrome (43404333340434).

The spelling of 21103121210322 in words is "twenty-one trillion, one hundred three billion, one hundred twenty-one million, two hundred ten thousand, three hundred twenty-two".